MS CRM 4.0 randomly freezes during a session

We are experiencing an  issue at the client side of MS CRM. Randomly, CRM IE sessions freeze wjen browsing lead or account information and the only solution is to restart the original IE session (reopening the CRM pop-up window does not help.)

Is this a known issue? Any ideas what could be causing this reason?
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No worries at all.  In fact, I'd started to type an apology myself until I went back and carefully re-read your post to understand the differences.

It's documented fairly well in the MS forums and is an issue that we have correct in the past, but I don't know of a specific KB article - MS would probably claim this is a feature rather than a bug ;-).  So, by "known" I mean that we have run into it and have repaired it.
I believe that this is an Internet Explorer issue. What version are you using? (6 or 7?)
It sounds to me like you're using IE7 though. If so, you can work around the issue by disabling tabbed browsing:
  1. Launch IE7.
  2. Click on Tools, then select Internet Options.
  3. Click on General tab.
  4. Locate the Tabs section and then click on Settings button.
  5. Uncheck Enable Tabbed Browsing.
  6. Click OK till exit.
For a fix, recommended action is to reinstall IE7 as per below (credit for notes go to Robear Dyer on eggheadcafe):
1. Uninstall IE7 (which automatically returns you to IE6) EXACTLY per  [Only use the Command
%windir%\ie7\spuninst\spuninst.exe if you cannot uninstall via Add/Remove

2a. Uninstall all toolbars and third-party Windows Themes (including Window

2b. Disable all Norton Add-ons, if applicable.

3. Reinstall IE7 EXACTLY per  <= Steps #1-8, #10 &

NB: Use  as the
installation source, not Automatic/Windows Update.

Or Direct Download link:

Tip: Save the installer to your desktop, do not Run it.

4. IMMEDIATELY go to and install any
critical updates offered.  If a "Root Certificates" update is listed in the
Optional category, you might install it, too, to take full advantage of
IE7's additional security.
For version 6, there is a possible solution here but i don't think it's relevant to your scenario.
Please post back with how you get on.
qprsoftAuthor Commented:
Yes, we are using IE 7. I instructed your workaround to one of our main users. Lets see what happens:) Do you know what is the reason for this behaviour?
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Sadly not - all I know is that you are not alone! ;)
A simpler fix may be to simply disable Quick Tabs in IE 7.

In IE 7

(1) Tools menu

(2) Internet Options

(3) On the first tab (general), click on the Settings button in the Tabbed Browsing section

(4) Uncheck the box for Quick Tabs under the "Enable Tabbed Browsing" section

I believe that should take care of your issue.  You should still be able to use Tabbed Browsing, if that is your preference, you just need to turn off Quick Tabs.
^^^ already addressed in my first post :-)
Reply to GregOwens: The difference is that I've suggested that they disable only Quick Tabs (not all of tabbed browsing as you suggested).  This way, they can continue to use almost all the features of tabbed browsing without having to go through an uninstall/reinstall of IE7.
As an aside, the Quick Tabs problem is a known issue with MS CRM.  I don't think a reinstall of IE7 is going to remedy the problem at all.
Sorry crm_info - I stand corrected, I'd only skim-read your post... :-(
Wasn't aware of the known issue status. For my own reference, do you know if there is a KB doc to acknowledge this? :)
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